Author:
Alfaqheri Taha T.,Sadka Abdul Hamid
Abstract
AbstractTransmission of high-resolution compressed video on unreliable transmission channels with time-varying characteristics such as wireless channels can adversely affect the decoded visual quality at the decoder side. This task becomes more challenging when the video codec computational complexity is an essential factor for low delay video transmission. High-efficiency video coding (H.265|HEVC) standard is the most recent video coding standard produced by ITU-T and ISO/IEC organisations. In this paper, a robust error resilience algorithm is proposed to reduce the impact of erroneous H.265|HEVC bitstream on the perceptual video quality at the decoder side. The proposed work takes into consideration the compatibility of the algorithm implementations with and without feedback channel update. The proposed work identifies and locates the frame’s most sensitive areas to errors and encodes them in intra mode. The intra-refresh map is generated at the encoder by utilising a grey projection method. The conducted experimental work includes testing the codec performance with the proposed work in error-free and error-prone conditions. The simulation results demonstrate that the proposed algorithm works effectively at high packet loss rates. These results come at the cost of a slight increase in the encoding bit rate overhead and computational processing time compared with the default HEVC HM16 reference software.
Funder
Qatar National Research Fund
Publisher
Springer Science and Business Media LLC
Reference30 articles.
1. Nightingale, J., Wang, Q., Grecos, C.: HEVStream: a framework for streaming and evaluation of high efficiency video coding (HEVC) content in loss-prone networks. IEEE Trans Consum Electron 58(2), 404–412 (2012)
2. International Telecommunication Union Telecommunication Standardization Sector (ITU-T) and Inter- national Organization for standardization/international electrotechnical commission (ISO/IEC), High efficiency video coding, Rec. H.265/ISO/IEC 23008–2 (2013)
3. Garcia, R., Kalva, H.: Subjective evaluation of HEVC and AVC/H.264 in mobile environments. IEEE Trans Consum Electron 60(1), 116–123 (2014)
4. Sjöberg, R., Boyce, J.: HEVC high-level syntax. In: High efficiency video coding (HEVC): algorithms and architectures, pp 13–48 (2014)
5. Flynn, D., et al.: Overview of the range extensions for the HEVC standard: tools, profiles, and performance. IEEE Trans. Circuits Syst. Video Technol. 26(1), 4–19 (2016)
Cited by
8 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献